Boiler-tube cleaner.



No.721,609. PATENTBD PBB.'24,V1903. Hl C I BOILER TUBECLBANER. APPLIoATIoN FILED MAY 1v. 1902.

ws Norms 'PETERS ca., PHOTO-umu., wAsmNcTon. w. :il

. UNrTan STATES 'PATENT OFFICE.

"HERBERT o. `RYDING, or ELYRIA, onio.Y

- lI aolLlaR-T'UBE CLEANER.

SPECIFICATION forming part of Letters Patent No. 721,609, dated'February 24, 1903.l

l Application led May 17, 1902.

'To all whom it may concern: l

Be it known that I, HERBERT 0.RYDING, of

4 Elyria,-iu the county of Lorain andState of specification. Y

` My invention has relation to certain 4new and useful improvements in boiler-tube cleaners, and is designed to provide a simple and effective implement which can be operated manually to quickly andthoroughly remove deposits of scale from the interior of boilertubes. l

With this object in view my invention consists in the combination, with a suitable head or carrier, of a number of cutting-blades pivoted to said head or carrier intermediate of y their ends and provided at their forward ends with chisel-like cutting edges which are forced outwardly by the action of springs which engage their opposite end portions, the whole being adapted for insertion and lreciprocation by means of a suitable handle Within the tube to be cleaned.

My invention also consists in the novel construction and combination of parts, all as hereinafter described, andpointed outin the appended claim, reference being had to the accompanying drawings, in which- Figure l is a side view of a boilertube cleaner embodying my invention and shown as in use; Fig. 2, an end view of one of the cutting-blades, and Fig. 3 aside view showing a modication.

The letter A designates a suitable shank or stem threaded at a for the attachment of a handle, and B is a headrigidly secured to the shank or stem. yThe head is formed with a number -of radial arms b, (four in the present instance,) provided-eachlwith a slot b"to seat the pivot portion of an elongated cuttingblade C. One of Ythese-blades is pivoted to each arm ofthe headintermediate of its ends,

its longer arm being bent somewhat outywardly at c and ground transversely, as

shown in Fig. ,2, to adaptit to the interior of sain No. 107,866. (No man the tube. The rearwardly-extending arrn of .5o.

each of the cutting-bladesis curved, as shown, and is engaged by a plate-spring D, which is secured to the shank or stem A. 'The springs by their pressure upon the shorter arms of the blades force the cutting edges outwardly A into yielding engagement with the scale 'to be removed, kas shown in Fig. l.

I The device is introduced into the tube to` be cleaned and is manuallyreciproca-ted therein by means of'the handle, (Not shown.)p6o The cutting edges ofthe blades act to scrape out channels in thescale, and by slightly rotating the cleaner the scale remaining between the channels is readily dislodged by the pressure of the cutters.- By adjusting the bolts CZ, which secure-the springs, the action of the latter'upon the cutters may be adjusted. i

In themodication shown in Fig. 3 the rear arms of the cutter-blades C are bent, 7o as shown at C2, forengagement with the springs D. y p

I do not Wish to limit myself to the precise construction and arrangement of the parts as herein shown 'and described, as various 75 changes may be made inthe details thereof Without departing frommy invention.

Having thus described-my invention, what I claim as new, and desire to secure by Letters Patent, is

A boiler-tube cleaner comprisingya central stem, a head liXed thereto andhaving a plu-v rality of -radial slotted arms, cutting-blades pivoted intermediately of their ends in the slots of said arms and `terminating each at one end in achisel-like cutting edge, and a number of springs secured to the saidl stem and each bearing'inwardly upon one of the cutting-blades at the rear of its pivot, Whereby the cutting edges of said blade are forced 9o outwardly at an angle-to the said stem.

yIn testimony whereof I have aflixed my signature in presence. of two witnesses.

HERBERT C. RYDING.

Witnesses:

JN0. GARD, BENJ. BnvANs. 

